Improvement in sash-holders



w. H. PLYMPITON.

Sash-Holder.

N0-. 165,945. Patented July 27,1875.

WITNESSES INVENTURi I @6 2 am 347 UNITED STATES WARREN H. PLYMPTON, OFPROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN SASH-HOLDERS.

Specification forming part of Letters Patent No. 165,945, dated July 27,1875; application filed December 26, 1874.

To all whom it may concern:

Be it known that I, WARREN H. PLYMP- TON, of the city and county ofProvidence, in the State of Rhode Island, have invented a new andImproved Sash-Supporter, of which the following is a specification:

In the accompanying drawings like letters indicate like parts.

Figure 1 shows the sash-supporter in position in its mortise within thesash. Figs. 2, 3, 4, and 5 are detail views.

My invention relates to that class of sashsupporters which sustain thesash at any position within the window-case by means of a pressureagainst the jamb, caused by the spring contained in the mechanism. Thesash is held securely in place, not only by this pressure upon the oneside, but also because the sash is thereby crowded hard against theopposite jamb. The friction thus occasioned upon both sides is so greatthat the weight of the window-sash is insufficient to overcome it, andthe window remains open at any desired height.

I am aware that several devices embodying this principle have alreadybeen invented and secured by Letters Patent. My invention differs fromthese in that it consists in a horizontally-working bolt, actuated by aspring, placed vertically within the stile of the sash, and interposedbetween the Working parts of the mechanism, by which arrangement of thespring I am able to obtain such amount of pressure as may be necessaryfor the purpose.

The parts of my mechanism are made of any suitable metal, and .may bethus described. A bolt, A, is made with an eye piece, a, (see Fig. 3,)and moves horizontally in the cylindrical case B. A bent finger-piece orlever, G, fashioned as shown in Fig. 2, has its fulcrum at theprojecting point 1) within the opening 0 of the case B, and has alimited vertical motion through a slot in the stile of the sash. Thislever has also a lug, d, which engages with the eye-piece a of the bolt,and which operates the bolt within the case B. The requisite pressure tosustain the weight of the sash is obtained by a long U-shaped steelspring, D, (see Fig. 4,) which lies vertically within the mortise, asshown in Fig. 1. The arms of this spring differ in length, and enterwithin the case B through slots 6 and f made to receive them. The endsof this spring are slightly bent to secure them in place. The longer armbears against the bolt A, which has a groove, g, to receive the bent endof the spring. while the shorter arm bears against the case itself, asshown at f. The spring thus keeps the face of the bolt in constant andforcible contact with the jamb of the window-frame, and may be of suchsiie and power as are necessary to sustain the weight of the sash. Acircular socket-piece, E, is inserted in the lower part of the jamb,into which the bolt A is crowded by the spring, and the window is thussecurely fastened down. The form of the cylindrical case B is fullyshown in Fig. 5. By operating the lever the bolt is withdrawn within thecase until the sash is moved into the desired position, when the lever,being released, permits the spring to crowd the bolt outwardly, and thewindowsash is firmly held in place.

I claim as a novel and useful invention, and desire to secure by LettersPatent- The improved sash -supporter herein described, consisting of thebolt A, the cylindrical case B, the bent lever O journaled in theopening 0, and provided with the operating lug d and the U-shaped springD interposed between the working parts, and placed vertically within thestile of the sash, all constructed, arranged, and operatingsubstantially as and for the purpose specified.

WARREN H. PLYMPTON.

Witnesses:

WARREN R. PERoE,

WILLIAM B. W. HALLETT.

